2.6.1.16 - 671603, 677033 2.6.1.16 Bio-Spin 6 column chromatography 674422 2.6.1.16 enzyme is purified to at least 98% homogeneity with 42% final yield 722052 2.6.1.16 Ni-NTA column chromatography 703705 2.6.1.16 Ni2+-IDA agarose affinity chromatography and HiTrap desalting column chromatography 671896 2.6.1.16 Ni2+-IDA agarose chromatography 676955 2.6.1.16 Ni2+-IDA agarose chromatography and Superdex 200 gel filtration 671089 2.6.1.16 partial purification by immobilized Ni2+ affinity column chromatography 706608 2.6.1.16 Q-Sepharose fast flow column chromatography and Superdex 200 Hiload gel filtration 674745 2.6.1.16 Q-Sepharose fast flow column chromatography and Superdex 200 HR 26/60 Hiload gel filtration 673687 2.6.1.16 recombinant protein 684758 2.6.1.16 using one-step immobilized metal-ion affinity chromatography 723015